1406111444 has 12 divisors (see below), whose sum is σ = 2527200564. Its totient is φ = 684054144.

The previous prime is 1406111437. The next prime is 1406111461. The reversal of 1406111444 is 4441116041.

It can be written as a sum of positive squares in 2 ways, for example, as 482680900 + 923430544 = 21970^2 + 30388^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4750229 + ... + 4750524.

It is an arithmetic number, because the mean of its divisors is an integer number (210600047).

Almost surely, 2^1406111444 is an apocalyptic number.

It is an amenable number.

1406111444 is a deficient number, since it is larger than the sum of its proper divisors (1121089120).

1406111444 is a wasteful number, since it uses less digits than its factorization.

1406111444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9500794 (or 9500792 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 1406111444 is about 37498.1525411586. The cubic root of 1406111444 is about 1120.3143898446.

Adding to 1406111444 its reverse (4441116041), we get a palindrome (5847227485).

The spelling of 1406111444 in words is "one billion, four hundred six million, one hundred eleven thousand, four hundred forty-four".